Catholic group Opus Dei are urging film ratings boards to give controversial new movie The Da Vinci Code an adult rating - because it fears children will believe the film's "lies" about JESUS fathering a child.

The Ron Howard directed film, starring Tom Hanks and Audrey Tautou, is based on Dan Brown's bestselling novel about an alternative theory behind The Holy Grail.

Opus Dei insists younger audiences should not be exposed to the film's "insidious lies" about Catholicism.

Spokesman MARC CARROGGIO says, "Any adult can distinguish reality from fiction. But you cannot expect a child to make proper judgements."

However Carroggio assures there will be "no declaration of war" against the film, and in fact believes it will result in a "sort of indirect publicity for us".

He promises, "No one is going to make threats or organise boycotts."